STUDYING THE COMPOSITION OF LOCAL RAW MATERIAL SAPONITE MINERAL RICH IN MAGNESIUM OXIDE AND RECOVERING CHLORIDE-CHLORATE FROM IT
Аннотация
One of the saponite sand deposits in the territory of Uzbekistan is Uchtut, located in the Central Kyzylkum plains of the Navoi region of the Republic of Uzbekistan. It was determined that the main layer of saponite is 1.7-1.9 m apart in some places, 10-15.0 cm thick (40-60% saponite), and in some places it is in the form of two layers. 15.0-20.0 cm (20-40% saponite). The mineralogical composition of saponite obtained from the Uchtut deposit was studied by chemical, X-ray phase, IR spectroscopic, differential thermal analysis, as well as gamma-spectrometric methods. The main mineral in the deposit is saponite, which is a multi-purpose mineral raw material and has been found to contain high levels of magnesium and calcium. The saponite mineral was roasted in a muffle furnace at different temperatures. The cinder was leached in three different percentage solutions of acid, as a result, magnesium chloride was obtained by roasting the saponite mineral at a temperature of 600-800C, and leached using the hydrocloric acid decomposition method, and in the next step by treating it with ammonium dihydrogen phosphate.